VLS63I

Probable alternate rendering of the VLS631 miniature thermal-delay switch; no independent source artifact is presently attached, so the functional assignment follows the corresponding documented designation conservatively.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 500 mA

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: 6.3 V
Nominal heater current: 500 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

ThermalDelaySwitch

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Miniature thermal delay switch.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1947 Standard Valves

Published operating points and test conditions from this source.

SECTION 1

ThermalDelaySwitch

Characteristics

Nominal delay
50 to 60 s
At 20 C

Other

Ambient temperature
-35 to 85 C
Maximum open-circuit contact voltage
220 VDC
Maximum contact current on make
1 A
Maximum surge current on make
5 A
Maximum current on break
100 mA
At 50 VDC